Table 2.
Association of adversity during sensitive periods with inflammatory biomarkers.
Timing of adversity exposure | M1/M2-like phenotype | Endotoxin tolerance phenotype | Pro-inflammatory cytokines | Anti-inflammatory cytokines | ||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
β | t-test (df) | p | β | t-test (df) | p | β | t-test (df) | p | β | t-test (df) | p | |
Early life | ||||||||||||
Unadjusted | 0.337 | 2.265 (40) | 0.029* | 0.066 | 0.420 (40) | 0.676 | 0.126 | 0.909 (51) | 0.368 | 0.045 | 0.321 (51) | 0.750 |
Adjusted model 1 | 0.308 | 2.094 (36) | 0.043* | 0.064 | 0.384 (36) | 0.703 | 0.137 | 1.121 (47) | 0.268 | 0.040 | 0.311 (47) | 0.757 |
Adjusted model 2 | 0.311 | 2.114 (37) | 0.042* | 0.084 | 0.511 (37) | 0.612 | 0.184 | 1.486 (48) | 0.144 | 0.062 | 0.442 (48) | 0.660 |
Pregnancy | ||||||||||||
Unadjusted | 0.332 | 2.226 (40) | 0.032* | 0.150 | 0.962 (40) | 0.342 | −0.185 | −1.344 (51) | 0.185 | −0.333 | −2.519 (51) | 0.015* |
Adjusted model 1 | 0.404 | 2.764 (36) | 0.009** | 0.180 | 1.061 (36) | 0.296 | −0.069 | −0.529 (47) | 0.599 | −0.230 | −1.745 (47) | 0.087† |
Adjusted model 2 | 0.324 | 2.049 (37) | 0.048* | 0.203 | 1.187 (37) | 0.243 | −0.123 | −0.933 (48) | 0.355 | −0.294 | −2.081 (48) | 0.043* |
Total lifespan | ||||||||||||
Unadjusted | 0.162 | 1.012 (38) | 0.318 | −0.341 | −2.239 (38) | 0.031* | 0.188 | 1.323 (48) | 0.192 | 0.045 | 0.311 (48) | 0.757 |
Adjusted Model 1 | 0.054 | 0.315 (34) | 0.755 | −0.410 | −2.417 (34) | 0.021* | 0.135 | 1.086 (44) | 0.283 | 0.001 | −0.001 (44) | 0.999 |
Adjusted Model 2 | 0.051 | 0.301 (35) | 0.765 | −0.415 | −2.544 (35) | 0.016* | 0.314 | 2.398 (45) | 0.021* | 0.101 | 0.661 (45) | 0.512 |
**p ≤ 0.01, *p ≤ 0.05, †p ≤ 0.10. Separate linear regression models were fitted, each specifying one inflammatory marker as the outcome and the specified life adversity factor as the independent variable. The anti-inflammatory and pro-inflammatory aggregates include the average of the blom-standardized scores for IL-1RA, IL-4, IL-10, and IL-1B, IL-6, TNF-a, and CRP respectively. Phenotype definitions are given in the methods. Adjusted model 1 included: age, BMI, and Hispanic ethnicity and current antidepressant use as covariates; adjusted model 2 included: high school education, family poverty, and being US born. Three individuals were missing data for total life adversity.